Home / 887,863.07-1,225,278.60-505,865.25

Finding the Fourth Proportional to 887,863.07, 1,225,278.60 and 505,865.25

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Solution

The fourth proportional to 887,863.07, 1,225,278.60 and 505,865.25 is: 698,109.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,863.07 : 1,225,278.60 = 505,865.25 : x
  2. Step 2: Convert to fraction form
    887,863.07/1,225,278.60 = 505,865.25/x
  3. Step 3: Cross multiply
    887,863.07x = 1,225,278.60 × 505,865.25
  4. Step 4: Simplify right side
    887,863.07x = 619,825,863,411.66
  5. Step 5: Solve for x
    x = 619,825,863,411.66/887,863.07
  6. Step 6: Final answer
    x = 698,109.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.